<script setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'

import { ref } from 'vue'

//文章分类数据模型
const categorys = ref([
    {
        "id": 3,
        "categoryName": "美食",
        "categoryAlias": "my",
        "createTime": "2023-09-02 12:06:59",
        "updateTime": "2023-09-02 12:06:59"
    },
    {
        "id": 4,
        "categoryName": "娱乐",
        "categoryAlias": "yl",
        "createTime": "2023-09-02 12:08:16",
        "updateTime": "2023-09-02 12:08:16"
    },
    {
        "id": 5,
        "categoryName": "军事",
        "categoryAlias": "js",
        "createTime": "2023-09-02 12:08:33",
        "updateTime": "2023-09-02 12:08:33"
    }
])

//用户搜索时选中的分类id
const categoryId=ref('')

//用户搜索时选中的发布状态
const state=ref('')

//文章列表数据模型
const articles = ref([])

//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(3)//每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
    pageSize.value = size
    articleList()
}

//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
    pageNum.value = num
    articleList()
}

// 获取文章分类的接口函数
import {ArticleCategoryListService, articleListService, articleAddService, articleDeleteService} from '@/api/article.js'
const articleCategoryList = async()=> {
    let result = await ArticleCategoryListService();
    categorys.value = result.data;
}

//获取文章列表数据
const articleList = async() => {
    let params = {
        pageNum: pageNum.value,
        pageSize: pageSize.value,
        categoryId: categoryId.value ? categoryId.value : null,
        state: state.value ? state.value : null
    }
    const result = await articleListService(params)
    //渲染视图
    total.value = result.data.total;
    articles.value = result.data.items;
    //处理数据 扩展属性
    for(let i = 0; i < articles.value.length; ++ i) {
        let article = articles.value[i];
        for(let j = 0; j < categorys.value.length; ++ j ) {
            if( article.categoryId === categorys.value[j].id) {
                article.categoryName = categorys.value[j].categoryName
            }
        }
    }
}
articleCategoryList(); // 获取的文章分类
articleList();

import {Plus} from '@element-plus/icons-vue'
import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'



//控制抽屉是否显示
const visibleDrawer = ref(false)
//添加表单数据模型
const articleModel = ref({
    title: '',
    categoryId: '',
    coverImg: '',
    content:'',
    state:''
})

const useCategoryByIdToName = ref('')
const useCategoryTitle = ref('')


const updateCategoryName = () => {
    // alert( articleModel.value.categoryId)
    for(let j = 0; j < categorys.value.length; ++ j ) {
        // console.log(categorys.value[j].id);
        if( articleModel.value.categoryId === categorys.value[j].id) {
           useCategoryByIdToName.value = categorys.value[j].categoryName
        }
    }
    useCategoryTitle.value = articleModel.value.title
    // alert(useCategoryByIdToName.value)
    
}

//导入token
import { useTokenStore } from '@/stores/token.js';
const tokenStore = useTokenStore();


//上传成功的回调函数
const uploadSuccess = (result) => {
    articleModel.value.coverImg = result.data;
    console.log(result.data);
    // alert('!!!!');
}
import {ElMessage, ElMessageBox} from 'element-plus'
//发布的函数
const addArticle = async(clickState) => {
    //把发布状态给数据模型
    articleModel.value.state = clickState
    //调用接口
    const result = await articleAddService(articleModel.value);
    ElMessage.success('添加成功')
    //让抽屉消失
    visibleDrawer.value = false;
    articleList() // 刷新当前列表
}


//删除
const deleteByMySelf = async(row) => {
    //提示用户 是否删除
    
     ElMessageBox.confirm(
    '确认要这篇文章吗?',
    '温馨提示',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(async() => {
        //调用接口
        const result = await articleDeleteService(row.id)
      ElMessage({
        //调用接口
        type: 'success',
        message: '删除成功',
      })
      //刷新列表
      articleList();
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '用户取消了删除',
      })
    })

}

//编辑内容的
const updateByMySelf = async() => {
    let result = await updateByMySelfService()
    ElMessage.success(result.msg ? result.msg : '修改成功')
    //刷新列表
    articleList();

}

const dialogVisible = ref(false)

const update = (row)=> {
    articleModel.value = row
    // console.log(articleModel.value);
    // console.log(articleModel.value.categoryId)
}
</script>


<template>

    <el-card class="page-container">

        <template #header>
            <div class="header">
                <span>文章管理</span>
                <div class="extra">
                    <el-button type="primary" @click="visibleDrawer = true">添加文章</el-button>
                </div>
            </div>
        </template>

        <!-- 搜索表单 -->
        <!-- <el-form inline> -->
            <el-form-item label="文章分类：">
                <el-select placeholder="请选择" v-model="categoryId">
                    <el-option 
                        v-for="c in categorys" 
                        :key="c.id" 
                        :label="c.categoryName"
                        :value="c.id">
                    </el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="发布状态：">
                <el-select placeholder="请选择" v-model="state">
                    <el-option label="已发布" value="已发布"></el-option>
                    <el-option label="草稿" value="草稿"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="articleList()">搜索</el-button>
                <el-button @click="categoryId='', state='', articleList()">重置</el-button>
            </el-form-item>
        <!-- </el-form> -->

        <!-- 文章列表 -->
        <el-table :data="articles" style="width: 100%">
            <el-table-column label="文章标题" width="400" prop="title"></el-table-column>
            <el-table-column label="分类" prop="categoryName"></el-table-column>
            <el-table-column label="发表时间" prop="createTime"> </el-table-column>
            <el-table-column label="状态" prop="state"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="update(row),dialogVisible = true, updateCategoryName()"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteByMySelf(row)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>


        <!-- 分页条 -->
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 5 ,10, 15]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end">
        </el-pagination>
          <el-drawer v-model="visibleDrawer" title="添加文章" direction="rtl" size="50%">
            <!-- 添加文章表单 -->
            <el-form :model="articleModel" label-width="100px" >
                <el-form-item label="文章标题" >
                    <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
                </el-form-item>
                <el-form-item label="文章分类">
                    <el-select placeholder="请选择" v-model="articleModel.categoryId">
                        <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="文章封面">
                <!-- action设置的是服务器的接口 -->
                    <el-upload class="avatar-uploader" :auto-upload="true" :show-file-list="false"
                        action= "/api/upload"
                        name="file"
                        :headers="{'Authorization': tokenStore.token}"
                        :on-success = "uploadSuccess"
                    >
                        <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar" />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>
                <el-form-item label="文章内容">
                    <div class="editor">
                        <quill-editor
                            theme="snow"
                            v-model:content="articleModel.content"
                            contentType="html"
              >
</quill-editor>
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="addArticle('已发布')">发布</el-button>
                    <el-button type="info" @click="addArticle('草稿')">草稿</el-button>
                </el-form-item>
            </el-form>
        </el-drawer>

    <!-- 更新的 -->
        <el-dialog v-model="dialogVisible" :title="title" width="30%">
    <el-form :model="articleModel" :rules="rules" label-width="100px" style="padding-right: 30px">
        <el-form-item label="文章标题" prop="articleModel.title">
            <el-input v-model="useCategoryTitle" minlength="1" maxlength="10"></el-input>
        </el-form-item>
        <el-form-item label="文章分类" prop="useCategoryByIdToName">
            <el-input v-model="useCategoryByIdToName" minlength="1" maxlength="15"></el-input>
        </el-form-item>
    </el-form>
    <template #footer>
        <span class="dialog-footer">
            <el-button @click="dialogVisible = false">取消</el-button>
            <el-button type="primary"  @click = "updateByMySelf()"> 确认 </el-button>
        </span>
    </template>
</el-dialog>
    </el-card>
</template>



<style lang="scss" scoped>
.avatar-uploader {
    :deep() {
        .avatar {
            width: 178px;
            height: 178px;
            display: block;
        }

        .el-upload {
            border: 1px dashed var(--el-border-color);
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: var(--el-transition-duration-fast);
        }

        .el-upload:hover {
            border-color: var(--el-color-primary);
        }

        .el-icon.avatar-uploader-icon {
            font-size: 28px;
            color: #8c939d;
            width: 178px;
            height: 178px;
            text-align: center;
        }
    }
}
.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}
</style>